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Today, we will review Laravel contains() method and Laravel containsStrict() method which is used to determine whether the collection contains a given value or not. This method applies to both Laravel Collection as well as Eloquent Collection object.
contains() method checks whether Laravel Collections contains certain given value or not. If you pass one value to the contains() method, it will check whether collection has any value matching to the parameter.
Another option is - You can also pass key / value parameter ~ first parameter is key and second parameter is value and it will match for the pair exclusively.
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First thing, we will need a table and i am creating products table for this example. So run the following query to create table.
CREATE TABLE `products` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
`description` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
`created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
`updated_at` datetime DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
Next, we will need to insert some dummy records in this table that will be deleted.
INSERT INTO `products` (`name`, `description`) VALUES
('Test product 1', 'Product description example1'),
('Test product 2', 'Product description example2'),
('Test product 3', 'Product description example3'),
('Test product 4', 'Product description example4'),
('Test product 5', 'Product description example5');
Now we are redy to create a model corresponding to this products table. Here we will create Product model. So let’s create a model file Product.php file under app directory and put the code below.
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
protected $fillable = [
'name','description'
];
}
Now, in this second step we will create some routes to handle the request for this example. So opeen routes/web.php file and copy the routes as given below.
routes/web.php
Route::get('product', 'ProductController@index');
Route::delete('product/{id}', ['as'=>'product.destroy','uses'=>'ProductController@destroy']);
Route::delete('delete-multiple-product', ['as'=>'product.multiple-delete','uses'=>'ProductController@deleteMultiple']);
#laravel #delete multiple rows in laravel using ajax #laravel ajax delete #laravel ajax multiple checkbox delete #laravel delete multiple rows #laravel delete records using ajax #laravel multiple checkbox delete rows #laravel multiple delete
1621559580
This article will be looking into one of the most popular questions in Java Language – What is Collection in Java? Also, what do you mean by Collections in Java? Are Collection and Collections the same or different in Java?
#full stack development #collection #collection vs collections in java #collections in java #difference between collection and collections in java
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Today, we will review Laravel contains() method and Laravel containsStrict() method which is used to determine whether the collection contains a given value or not. This method applies to both Laravel Collection as well as Eloquent Collection object.
contains() method checks whether Laravel Collections contains certain given value or not. If you pass one value to the contains() method, it will check whether collection has any value matching to the parameter.
Another option is - You can also pass key / value parameter ~ first parameter is key and second parameter is value and it will match for the pair exclusively.
Let’s review an example with one parameter (checking only value):
$users = collect(['name' => 'John Doe', 'email' => 'johndoe@example.com']);
$users->contains('John Doe');
// true
$users->contains('John Admin');
// false
Let’s review an example with two parameters (checking whether collection contains key / value pair):
$collection = collect([
['id' => '200', 'amount' => '500'],
['name' => '201', 'country' => '200'],
]);
$collection->contains('amount', '500');
//true
$collection->contains('id','500');
//false
Also Read: Laravel Pluck() Method with Example
Lastly, you can also pass callback function with your own matching expression to check whether laravel collection or eloquent collection contains given value or not.
#laravel
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